5205851 has 4 divisors (see below), whose sum is σ = 5949552. Its totient is φ = 4462152.

The previous prime is 5205839. The next prime is 5205853. The reversal of 5205851 is 1585025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5205851 - 2⁶ = 5205787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5205851.

It is not an unprimeable number, because it can be changed into a prime (5205853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371840 + ... + 371853.

It is an arithmetic number, because the mean of its divisors is an integer number (1487388).

Almost surely, 2^5205851 is an apocalyptic number.

5205851 is a deficient number, since it is larger than the sum of its proper divisors (743701).

5205851 is an equidigital number, since it uses as much as digits as its factorization.

5205851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743700.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 5205851 is about 2281.6334061369. The cubic root of 5205851 is about 173.3127757506.

The spelling of 5205851 in words is "five million, two hundred five thousand, eight hundred fifty-one".